EP 0639400 A1 19950222 - Modified large pore zeolites for trapping alkenes.
Title (en)
Modified large pore zeolites for trapping alkenes.
Title (de)
Modifiziertes grossporiges Zeolith zum Einfangen von Alkenen.
Title (fr)
Zéolite modifiée à larges pores pour piéger d'alcènes.
Publication
Application
Priority
- US 10651493 A 19930816
- US 22168994 A 19940331
Abstract (en)
A modified large pore zeolite molecular sieve structure is disclosed for adsorbing alkenes emitted during engine start-up, before the catalytic converter has attained its effective operating temperature. The zeolite molecular sieve is modified by inserting certain metal ions into the molecular sieve structure. In particular, a modified y-zeolite having a high adsorption capacity for propylene is disclosed. <IMAGE>
IPC 1-7
IPC 8 full level
B01D 53/04 (2006.01); B01D 53/72 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 29/072 (2006.01); B01J 35/02 (2006.01); F01N 3/08 (2006.01); F01N 3/24 (2006.01); F01N 3/20 (2006.01); F01N 7/02 (2006.01); F01N 13/02 (2010.01); F02M 25/07 (2006.01)
CPC (source: EP KR)
B01D 53/0454 (2013.01 - EP); B01D 53/94 (2013.01 - KR); B01D 53/944 (2013.01 - EP); B01D 53/9445 (2013.01 - EP); B01J 29/00 (2013.01 - KR); B01J 29/084 (2013.01 - KR); F01N 3/0807 (2013.01 - EP); F01N 3/0878 (2013.01 - EP); F01N 3/10 (2013.01 - KR); F01N 13/009 (2014.06 - EP); B01D 2257/7022 (2013.01 - KR); F01N 3/20 (2013.01 - EP); F01N 2240/02 (2013.01 - EP); F01N 2250/12 (2013.01 - EP); F01N 2370/24 (2013.01 - EP); F01N 2410/12 (2013.01 - EP); F02M 26/15 (2016.02 - EP); Y02T 10/12 (2013.01 - EP)
Citation (search report)
- [PY] EP 0593898 A1 19940427 - CORNING INC [US]
- [PY] EP 0586830 A1 19940316 - CORNING INC [US]
- [Y] EP 0532803 A1 19930324 - UOP INC [US]
- [Y] EP 0424966 A1 19910502 - TOYOTA MOTOR CO LTD [JP]
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0639400 A1 19950222; AU 6894994 A 19950223; BR 9403249 A 19950822; CA 2128562 A1 19950217; JP H07166852 A 19950627; KR 950005373 A 19950320
DOCDB simple family (application)
EP 94111551 A 19940725; AU 6894994 A 19940808; BR 9403249 A 19940815; CA 2128562 A 19940721; JP 19248494 A 19940816; KR 19940020148 A 19940816